Abstract: CVE polyorganosiloxane compositions crosslinkable into silicone elastomeric state, well suited for the protective coating of a wide variety of substrates and supports, notably vehicular airbags, are improvedly adhered thereto by including in said CVE silicone compositions an adhesiveness promoter comprising (1) at least one alkoxylated organosilane containing, per molecule, at least one C.sub.2 -C.sub.6 alkenyl radical, (2) at least one organosilicon compound containing at least one epoxy radical, and (3) at least one chelate of metal M and/or a metal alkoxide having the formula: M(OJ).sub.n, wherein n is the valency of M, J is a linear or branched C.sub.1 -C.sub.8 alkyl radical, and M is selected from among Ti, Zr, Ge, Li, Mn, Fe, Al and Mg.

Abstract: The present invention relates more specifically to silicone compositions which can be crosslinked into an adhesive gel by hydrosilylation at room temperature, as well as to the gels thus obtained. One of the objects of the invention is to produce, easily and rapidly, gels having viscoelastic qualities, low-temperature physical stability and adhesion properties.This objective is achieved by virtue of the compositions comprising:a polyorganosiloxane POS (I) of the SiVi type (Vi=vinyl);a POS (II) of the SiH type;an extender POS (III) of the .alpha.,.omega.-hydrogen, SiH type; and, optionally, a diluent POS (IV) of the polydimethylsiloxane type; where ##EQU1## Application: protection of electronic equipment (potting), adhesives, prostheses.

Abstract: CVE polyorganosiloxane compositions crosslinkable into silicone elastomeric state, well suited for the protective coating of a wide variety of substrates and supports, notably vehicular airbags, are improvedly adhered thereto by including in said CVE silicone compositions an adhesiveness promoter comprising (1) at least one alkoxylated organosilane containing, per molecule, at least one C.sub.2 -C.sub.6 alkenyl radical, (2) at least one organosilicon compound containing at least one epoxy radical, and (3) at least one chelate of metal M and/or a metal alkoxide having the formula: M(OJ).sub.n, wherein n is the valency of M, J is a linear or branched C.sub.1 -C.sub.8 alkyl radical, and M is selected from among Ti, Zr, Ge, Li, Mn, Fe, Al and Mg.

Abstract: Linear diorganopolysiloxanes having at least two alkoxy groups at each end of the polymer chain, well suited for formulation into single-component, storage-stable CVE polysiloxane compositions curable into elastomeric state in the presence of moisture, are prepared by functionalizing an alpha,omega-dihydroxydiorganopolysiloxane oil with a polyalkoxysilane, in the presence of a catalytically effective amount of a zinc complex of the formula: ##STR1##

Abstract: Organopolysiloxane compositions curable into elastomeric state even in the absence of atmospheric moisture, notably in a confined environment, and well adopted for the production of seals, include a ketiminoxy crosslinking agent and a natural or synthetic hydrogel hardening agent.

Abstract: Organopolysiloxane compositions curable into elastomeric state even in the absence of atmospheric moisture, notably in a confined environment, and well adopted for the production of seals, include an acyloxy crosslinking agent and a natural or synthetic hydrogel hardening agent.

Abstract: The diorganopolysiloxane alpha, omega-diol oils are terminally alkoxylated by reacting same with a polyalkoxysilane in the presence of an organic oxime devoid of silicon atoms. The resulting functionalized oils are well adapted for the formulation of single-component, storage-stable organopolysiloxane CVE compositions.

Abstract: Storage-stable diorganopolysiloxanes curable into adhesive/elastomeric state, well adapted as coatings and sealants, e.g., for adhering a wide variety of building construction materials such as glass, aluminum and PVC, are comprised of an .alpha.,.omega.-dihydroxydiorganopolysiloxane polymer, a ketiminoxysilane crosslinking agent therefor, and an effective amount of a tackifier which comprises a (.DELTA..sup.2 -imidazolinyl)alkylsilane.

Abstract: Single-component diorganopolysiloxane compositions which are storage-stable in the absence of atmospheric moisture and which crosslink into silicone elastomeric state in the presence of moisture, are comprised of an alkoxy-terminated diorganopolysiloxane, a functionalization catalyst containing a primary or secondary amine group, a tin condensation catalyst, a filler material, and an effective stabilizing amount of an alkyl or aryl isocyanate-substituted diorganopolysiloxane.

Abstract: Single-component diorganopolysiloxane compositions which are storage-stable in the absence of atmospheric moisture and which crosslink into silicone elastomeric state in the presence of moisture, are comprised of an alkoxy-terminated diorganopolysiloxane, a functionalization catalyst containing a primary or secondary amine group, a tin condensation catalyst, a filler material, and an effective stabilizing amount of an isocyanurate of the formula: ##STR1## wherein W is --CH.sub.2).sub.n N.dbd.C.dbd.O and n ranges from 1 to 12.